Marie Lamere, 42 of Rochester was discovered by the RG&E workers underneath grates at a company-owned building near High Falls Monday morning. Police didn't release how long Lamere was in the water or what caused her death.

Rescuers responded to an area near Commercial Street on the west bank of the river around 9:40 a.m. after a 911 caller reported what appeared to be a human body in the water.

Lamere's body was found in a brick building where water from the Genesee River is diverted under Brown's Race, then returned to High Falls.

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A woman was found dead in a RG&E building on Brown's Race. The woman had been swept by the Genesee River into a grate that goes under the building and was discovered by RG&E workers.(Photo: Tina MacIntyre-Yee/@tyee23/staff photographer)

Rochester Police Capt. David Smith said it appeared that the woman's body was swept underwater and into the building, but it was not clear how long she was in the water.

Firefighter Amon Hudson, public information officer for the Rochester Fire Department, said it took two dozen officers nearly an hour to recover Lamere's body.

Frefighters used rescue ropes, harnessed Lamere, and moved her body into the basket as authorities slowed the water's current.

A woman was found dead in a RG&E building on Brown's Race. The woman had been swept by the Genesee River into a grate that goes under the building and was discovered by RG&E workers.(Photo: Tina MacIntyre-Yee/@tyee23/staff photographer)